I think we've already established Tulo and Martin aren't going to come close to previous years success, they're no longer elite assests, just really expensive good players. There's basically no trade equity on the roster, anyone who has some (Stroman, Sanchez, Travis, Osuna, few prospects) would just create holes to fill elsewhere. The only way to add value by trading them is to get multiple older players in return who likely have high salaries (this won't work either with payroll). So that leaves only the free agent market, yay.